(1)832.47/50=
(50為常數(shù))
(2)28.146+121-53.24=
(3)14.76*30÷5=
(4)16.26÷3.0+1.5*40=
(1)2370.4/10=
(2)32.785-2.46+70.3=
(3)50.32*2.5÷100=
(4)38.74*1.1+4.72÷1.23=
(1)7.9*103-0.9*103=
(2)6.79÷20+2.3=
(20是常數(shù))
(3)28*3.23÷6.519=
(4)503.7*1.2-4.7*100=